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Finding the Fourth Proportional to 926.77, 1,390.02 and 333.73

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Solution

The fourth proportional to 926.77, 1,390.02 and 333.73 is: 500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.77 : 1,390.02 = 333.73 : x
  2. Step 2: Convert to fraction form
    926.77/1,390.02 = 333.73/x
  3. Step 3: Cross multiply
    926.77x = 1,390.02 × 333.73
  4. Step 4: Simplify right side
    926.77x = 463,891.37
  5. Step 5: Solve for x
    x = 463,891.37/926.77
  6. Step 6: Final answer
    x = 500.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.